EP 2851444 A1 20150325 - SINTERED BEARING FOR MOTOR-TYPE FUEL PUMP WITH OUTSTANDING CORROSION RESISTANCE, WEAR RESISTANCE, AND CONFORMABILITY
Title (en)
SINTERED BEARING FOR MOTOR-TYPE FUEL PUMP WITH OUTSTANDING CORROSION RESISTANCE, WEAR RESISTANCE, AND CONFORMABILITY
Title (de)
GESINTERTES LAGER FÜR MOTORKRAFTSTOFFPUMPE MIT HERAUSRAGENDER KORROSIONSBESTÄNDIGKEIT, VERSCHLEISSFESTIGKEIT UND FORMANPASSUNGSFÄHIGKEIT
Title (fr)
PALIER FRITTÉ DESTINÉ À UNE POMPE À CARBURANT À MOTEUR PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA CORROSION, UNE EXCELLENTE RÉSISTANCE À L'USURE, ET UNE EXCELLENTE CONFORMABILITÉ
Publication
Application
Priority
- JP 2012111481 A 20120515
- JP 2013063375 W 20130514
Abstract (en)
Provided is a novel bearing for motor-type fuel pump that comprises a Zn-P-Ni-Sn-C-Cu-based sintered alloy. The bearing has a corrosion resistance to a coarse gasoline containing sulfur or an organic acid(s); a superior wear resistance; and a superior conformability with a shaft as a counterpart. Thus, the bearing is suitable even for use in a downsized fuel pump. The bearing has a structure in which a base comprises 3 to 13% by mass of Zn, 0.1 to 0.9% by mass of P, 10 to 21% by mass of Ni, 3 to 12% by mass of Sn, 1 to 8% by mass of C and a remainder composed of Cu and inevitable impurities; the base comprises a solid solution phase of a Zn-Ni-Sn-Cu alloy; a Sn alloy phase containing not smaller than 15% by mass of Sn is formed in grain boundaries of the base; a porosity of 8 to 18% is exhibited; and free graphite is distributed in pores.
IPC 8 full level
B22F 3/11 (2006.01); B22F 5/00 (2006.01); C22C 1/04 (2006.01); C22C 1/08 (2006.01); C22C 9/04 (2006.01); C22C 9/06 (2006.01); C22C 13/00 (2006.01); C22C 19/03 (2006.01); F16C 33/12 (2006.01); F16C 33/16 (2006.01)
CPC (source: EP US)
B22F 3/11 (2013.01 - EP US); C22C 1/04 (2013.01 - US); C22C 1/0425 (2013.01 - EP US); C22C 1/0483 (2013.01 - EP US); C22C 1/08 (2013.01 - US); C22C 9/04 (2013.01 - EP US); C22C 9/06 (2013.01 - EP US); C22C 13/00 (2013.01 - EP US); C22C 19/03 (2013.01 - EP US); F16C 33/121 (2013.01 - EP US); F16C 33/128 (2013.01 - EP US); F16C 33/16 (2013.01 - EP US); F16C 2204/10 (2013.01 - EP US); F16C 2204/14 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 10041536 B2 20180807; US 2014376845 A1 20141225; BR 112014021510 B1 20190514; CN 104053802 A 20140917; CN 104053802 B 20170301; EP 2851444 A1 20150325; EP 2851444 A4 20160413; EP 2851444 B1 20161123; IN 6626DEN2014 A 20150522; JP 2013237898 A 20131128; JP 5755599 B2 20150729; WO 2013172326 A1 20131121
DOCDB simple family (application)
US 201314376249 A 20130514; BR 112014021510 A 20130514; CN 201380005255 A 20130514; EP 13790243 A 20130514; IN 6626DEN2014 A 20140806; JP 2012111481 A 20120515; JP 2013063375 W 20130514